Door-locking mechanism



Aug; 24 19269 1,596,992

. P. OGNOWICZ DOOR LOCKING MECHANISM Filed Oct. 16, 1924 Patented Aug.24, 1926.

PAUL oeNowIoz, or CHICAGO, ILLINOIS.

DOOR-LOCKING MEcHAnIsM.

Application filed October 16, 1924. Serial No. 743,902.

The present invent-ion relates to door looking mechanism. r

An object of the present invention is to provide a locking mechanism fordoors which is particularly sturdy and which, while simple inconstruction, is effective in thwarting the attempts of intruders tobreak said mechanism. 1 A further object is to to mechanism which -issmooth in operation,

positive in its action, inexpensive to manufacture and which isapplicable for thelock ing of doors of either the single or doublevariety. 1 1 A further object is toprovide a locking mechanism fordoors' which is readily adaptable for locking doors not only at thesideedge butat the bottom-and top of said doors. Further objects will appearas-the description proceeds. v 1 1 I Referring to the drawings- 1 Figure1 is a view-of double doors in closed position, said view-being takenfrom the inside of said doors and showinganembodiment of the presentinvention applied thereto;

Fi ure 2 is a view; similar to Fi ure 1 butshowing a singledoorcooperating with a relatively stationary jamb-and having oer-' tainpartsremoved for"clarity'ofillustra- Figure 3 is a sectional view ofcertain locking 'mechanism forming part of 7 the present invention,-said view being taken from the rear of the structure shownin Figure 2';r

Figure 4: 1s a sectional view taken alongthe plane indicated bythearrows 1-4j of Figure 2;

Figure 1 and Figure 6 illustrates a detail charisma I w more in detailherelnafter.

tion. I 1 The numeral 1 indicates a door, a'nd the numeral 2' indicatesa second door cooperating with the door 1. The numeral 3 indicates theupper sill and the numeral 4 indicates the lower sill of a doorway. Saiddoors 1 and 2 are swinging doors and are shown in closed position.Figure 2 shows the swin -lug door 1 and a stationary door jamb A bolt isprovided with the slot 15 adapted D n I 5 cooperating therewith. I 7 Thepresent invention contemplates improved mechanism for posltively'locking and releasably latching the-door 1 in" closed Figures 1 and 2, alatch 6 is provided to ferred to hereinafter.

provide a locking 5 latch 6 is a keeper bolt or dead bolt '7, whichFigure 5 1s a sectional view taken alongthe plane indicated by thearrows 5-5 of' 1n the retraction of the'latch 6 at the side position,certain features of the invention contemplating the' control of the door2. According to the structures illustrated in 60 extend outwardly fromthe swinging edge of the door 1.- Said latch is spring-pressed outwardlyin a'manner which will be re- Adjacent to the the top and bottom sillsof the doorway.

The latches 6 and8 may be provided with roller bearings 9 9, illustratedin Figure 3 whereby to simplify the. entrance of said latchesinto' andremoval ofsaid latches from their corresponding recesses. The latch 6 atthe side edge of the door 1 is adapted to be directly operated from theshaft 10, which carries the handles 1111 $9 at the two opposite sides ofthe door. Said shaft 10 is shown as being square in cross section and isprovided with the-fitting 11 non-rotatably connected thereto, whichfitting 11 provides the pair of radially extend- 8 ing arms 1212. Saidarms1212 are-conne'cted to the cables or-rods 13-13, which cablesorvrods 13 -13 are-connected 'tothe spring-pressed latches 8---8 at thetop and bottomedges of the swinging door 1. Said cables or rods shouldpreferably be extensible, as by means of turn buckles. A turningmovement of shaft '10 in a counterclockwise direction as the parts areviewed in Figures 1 land 2 will result in the retraction of the latches8.-8 at the top and bottom edges of the door 1. Thismovement will alsoresultedge of the door 1, as will be referred to Referring nowparticularly to Figure '3, the numeral 14 indicates' a casing, which maybe fitted into the side edge of the door to receive the pin 16 of a lock17 ,indicated 10 in dotted lines. It will be clear that by operation ofthe lockl'? the-keeper bolt-7 may be held in projected position, or maybe held in retracted position. The retracted position is illustrated inFigure 3. The latch member 6 is mounted within the easing 14 adjacent tobolt 7 and in a position to have movement parallel with the line ofmovement of the keeper bolt 7. Said latch member 6 is normally projectedoutwardly by means of the springs 18-18, which springs have an abutmentagainst a relatively fixed portion of the casing 1 1. Said latch member6 is provided with the slot 19 for receiving the shaft 10. By reason ofsaid slot, reciprocation of the latch member 6 is not interfered with.Said latch member 6 is provided with a pair of abutments 202O adapted tocooperate with the member 21 fixedly secured to the shaft 10. Saidmember 21 has the two operating portions 2222 for cooperation with theabutments 2020, whereby turning of the shaft 10 in either d rection willresult in the retraction of the latch member 6 against the tension ofthe springs 1Sl8.

Cooperation may be had between the keeper bolt 7 and the latch member 6by the provision of certain interlocking mechanism, which will now bereferred to. Located between the keeper bolt 7 and the latch member 6 isthe detent 23 pivoted for movement about the axis 24.. Said detentmember 23 has an ear portion providing bearings for a roller 25 adaptedto contact with the cam surface 26 on the under side of the keeper bolt7. The lower portion of the de tent member 23 is provided with theabutment portion 27 adapted to abut against a shouldered portion of thelatch member 6. The abutting position of said abutment portion 27 isindicated in dotted lines in Figure 3. A spring 28 is provided, whichtends to urge the detent member 23 out of cooperative relationship withthe latch member 6. The cam portion 26 is so arranged relative to thedetent member 23 that when said keeper bolt 7 is in its retracted orunlocking position the spring 28 will hold the detent member 23 out ofcooperative relationship with the latch member 6. When the lockingmember 7 is in its projected or locking position, however, the detentmember 23 will be swung downwardly against the tension of the spring 28,whereby the abutment portion 27 of the detent member 23 will be movedinto abutting relationship with the latch member 6, whereby said latchmember 6 can not be retracted. The locking of the keeper bolt 7 ineither its projected or retracted position will, therefore, control theoperation of the latch member 6.

It will be clear that according to the structufe shown in Figure 3 theshaft 10 may be turned in either direction to cause the retraction ofthe latch member 6. hen the locking device is used in connection withthe structure shown in Figure 2, however, turning of the shaft 10 mustbe had in one direction only, to cause the retraction of the latchmembers 88 at the top and bottom edges of the door.

The means for protecting the locking mechanism from tampering will nowbe described. Mounted on the outside of the door is the face plate 29,and mounted on the inside of the door is the face plate 30. Said faceplates 29 and 30 may have bushings (not shown), which provide bearingspermitting the free rotation of the shaft 10. The face plate 29 on theoutside of the door is provided with the inwardly extending lugs 31(Figure 5) adapted to be embedded in the material of the door. Said lugs3131 are internally screw-threaded for reception of the bolts 3232,which extend to the inner side of the door 1. The heads of said bolts3232 are covered by the face plate 30, which face plate may be held inplace by means of screws or other preferred holding means. The numerals3333 indicate guards or covering means for the cables or rods 1313.

Referring to Figure 1, it will be noted that the lock 17 need beassociated with only one of the swinging doors. Moreover, in manyinstallations it will be preferred to have the lock 17 presented onlyoutwardly of the door 1 instead of both inwardly and outwardly.

The face plate 29 should be of tool-resisting steel, whereby to bafileunauthorized persons attempting to break the lock. 7 It will be clearthat by reason of the fact that the lugs 3131 are embedded within thematerial of the door, it will be impossible to remove the face plate 29by the common expedient of, inserting a tool between said face plate andthe door 1 to attack the holding screws for said face plate.

Figure 6 shows a keeper suitable for latch 6 or either of the latches 8.Said keeper has the two flanges 34 and 35 preferably arranged at rightangles to each other, each of said flanges being embedded in the memberupon which it is mounted. The flange. 35 will be located interiorly ofthe building being protected and is provided with the latch guiding lip36. The flange 3% is provided with bolt and latch receiving apertures,one of which is represented by the numeral37. The keeper illustrated anddescribed has the advantage that it cannot be pried loosevwhen the doormechanism is in locked position.

It will be clear without detailed description that the locking mechanismembodying the principles of the present invention is simple and positivein its action, cheap to manufacture and little liable to get out oforder.

It will be understood that the described embodiments of the presentinvention are chosen merely for the purposes of illustration and shouldnot be considered in a limiting sense. It is intended to cover allmodifications of the present invention falling Within the scope or theappended claim.

lVhat is claimed is: V

In combination, a door, relatively sta tionary means above, below and atthe swinging edge of said door, keeper means upon all of said upper,lower and side stationary means, spring-projected latch members forcooperation with all of said keeper means, a unitary control member forsaid latch means, said control member being connected to said upper andlower latch means by means of extensible elongated members, the latchingmember at said side edge comprising a spring-projected frame member, apositively acting dead bolt mounted in parallel relationship with saidframe member, a detent having camming relationship with said dead bolt,said detent member being a simple rocking member located between saiddead bolt and said frame member and adapted to hold said frame memberpositively in projected position and to prevent operation of saidcontrol member when said dead bolt is in projected position, and a faceplate upon the outside of the door for protecting said control member,said face plate having screw-threaded lugs projecting into the material01 said door, and bolts having their heads disposed on the inside ofsaid door for cooperating with said screw-threaded lugs.

' Signed at Chicago, Illinois, this 13th day of October, 1924.

PAUL oeNowioZ.

